IEC 60815-2 defines four main Site Pollution Severity (SPS) classes for AC:
IEC 60815-2 is a foundational standard for modern power grid insulation design. By shifting the industry from a generalized insulation checklist to a precise calculation of Site Pollution Severity and Unified Specific Creepage Distance, it ensures that glass and ceramic insulators can withstand the harsh realities of environmental pollution. For any professional tasked with maintaining or building reliable AC high-voltage systems, the IEC 60815-2 PDF is an indispensable technical asset. iec 60815-2 pdf
Organizations such as ANSI (USA), BSI (UK), DIN (Germany), or NSAI (Ireland) sell licensed copies of adopted IEC standards. IEC 60815-2 defines four main Site Pollution Severity
IEC 60815-2 is titled "Selection and dimensioning of high-voltage insulators intended for use in polluted conditions – Part 2: Ceramic and glass insulators for a.c. systems." Organizations such as ANSI (USA), BSI (UK), DIN